IMMUNOGENETIC PARAMETERS OF THE RED-AND-WHITE COWS IN RELATION TO THE LINEAR AFFILIATION
| Autor: | O. V. Ivanova, E. V. Gatilova, Lyubov Valentinovna Efimova |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Veterinary medicine education.field_of_study Population Locus (genetics) General Medicine General Chemistry Biology 01 natural sciences Loss of heterozygosity 03 medical and health sciences 030104 developmental biology Antigen Genetic similarity Genotype Allele education Dairy cattle 010606 plant biology & botany |
| Zdroj: | Bulletin of NSAU (Novosibirsk State Agrarian University). :32-39 |
| ISSN: | 2072-6724 |
| DOI: | 10.31677/2072-6724-2019-53-4-32-39 |
| Popis: | The paper explores the urgency of increasing efficiency of breeding Red-and-White dairy cattle that take the main part of the population in the Krasnoyarsk region (69.7%), the immunogenetic characteristics of animals that belong to Montwick Chiftein and Pabst Hoverner (n=52) lines. The research on the blood groups of cows were conducted in the laboratory of immunogenetic analysis of Krasnoyarskagroplem. The authors revealed the differences in the incidence of specific antigens in the cows of two lines. The article found out that antigens A’2, B2, E’3, O3, and T2 (P>0.95-0.99) were found to be more frequent in Montwick Chiftein line cows, and antigen P2 (P>0.95) wasfound in Pabst Governer line cows. It was also revealed that the most rare antigens in the Montwick Chifthein line are antigens A’, A’1, O2, O4, Y1, R1, X1, M and E’2, and antigens B’’, O4, U and U’’in the Pabst Governer line. Interestingly, the authors identified the antigens that were not present in the animals of both lines and in each line separately. The average index of antigen incidence in the cows of each line showed a relatively low value. Due to this the authors made a conclusion about a high degree of heterozygosity of the studied individuals. The index of genetic similarity among the animals of two lines demonstrates a high value of 0.863. The polymorphism of the antigens in the EAF-V locus was studied and a significant incidence predominance in cows of the F allele over the V allele was found out. The impact of genotype according to the EAF-V locus on dairy productivity and live weight of the cows was determined: in the Montwick Chifthein line, cows with the FF genotype (5986,60172,41 kg) had a higher yield, in the Pabst Governer line - with the FV genotype (5914,20208,19 kg). Animals of both lines that had genotype V/V had higher live weight parmeters than animals with genotypes F/V and F/F. The comparative analysis of the obtained results was carried out with the results of other Russian authors who conducted similar studies. |
| Databáze: | OpenAIRE |
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